Fastening.



D. W. KOLLE.

FASTENING.

APPLIOATION FILED FEB. 18,1914.

1,1 1 0,21 1, Patented Sept. 8, 1914;.

WITNESS IIVVE/VTOR 7 flallior 7%24972207'71'0 THE NORRIS PETERS CQ, PHOTO-LITHQ, WASHINGTUN. D. C.

ATTORNEYS DALLTOR WALDEMAR KOLLE, F PORTLAND, OREGON.

FASTENING.

Specification of ietters Patent.

' Application filed February'ls, 1914. Serial No. 819,462.

To all whom it may concern Beit known that I, DALLTOR WALnnMA'n KoLLn, a citizen ofthe United States, and a resident of Portland, in the countyof Multnomah and State of'Oregon, have invented v a new and Improved Fastening, of which the I following is a full, clear, and exact descrip v tion.

p The invention relates to eyeglasses and spectacles, and its object is to provide a new and improved fastening more especially designed for fastening the posts or studs to lenses of eyeglasses and spectacles, and ar ranged to securely hold the lens in position on the post by the use of a screw holder out of contact with' the lens.

In order to produce the desired result, use is made of a post having apertured ears straddling the lens and provided at their inner faces with frusto-conical flanges extending into ends of an aperture in the lens, one of the said ears and its flange being proa vided with an interior screw thread and a screwengaging the said ears and passing through the said apertures of the lens.

A practical embodiment of the invention is represented in the accompanying drawings forminga part of this specificatiominwhich similar characters of reference indicate corresponding parts in allthe views.

Figure lis an enlarged face view of the fastening device as applied for fastening the post or stud to a lens; Fig. 2 is an invertedsectional plan view of the same on the line 22 of Fig. 1; and Fig. 8 is an edge view of the post or stud. I I

The post or stud is provided with the usual strap B fitting onto the peripheral edge of the lens 0 and the said post, or stud is also provided with ears D, D straddling the lens G by engaging the opposite faces thereof. The ears D, D are provided with registering apertures in register with an aperture E formed in the lens C, and the ends ofthe said aperture E are provided with countersinks E, E" into which fit frusto-conical annular flanges D D integral on the inner faces of theears D and D. The wall of the aperture in the ear D is provided with an interior screw-thread into which screws a screw F passing through the nonthreaded aperture in the ear D and its flange D the said ear D being provided wlth a countersink D into which fits the head F of thescrew F so that the head F does not form an undesirable projection. It

will be noticed that by having the flanges Y Patented Sept. 8, 1914.. a

D, D engaging the countersinks E, E the ears D and D" are properly centered rela tively to the aperture E, and at the same time the flanges D D draw the strap B in firm contact with the peripheral edge of the lens C so that the post or stud A is see curely fastened in place and is not liable to break the lens. It will also be noticed that the screw F does not come in contact with the wall of the aperture E and hence the screw cannot work loose and is not liable to break the lens 0 as is so often the case with fastenings of this kind.

The fastening shown and described is very simple in construction, and can'be readily applied to the lens '0, it being understood that in placing the ears D,;D in position on the lens G, the ears are slightly spread countersinks E and E at the ends of the apertures E.

Having thus described'my invention, I

claim asnew and desire to secure by Letters v Patent In a fastening, the combination of a lens provided with a round aperture having coni I cal countersunk ends, a post provided with apertured ears straddling the said lens, the

inner faces of the said ears being provided with frusto-conical flanges fitting into .the

said countersunk ends of the lens aperture,

one of the said ears and its flange being pro-.

' In testimony whereof I have signed my name to this speclfication 1n the presenceof two subscribing witnesses.

DALLTOR WALDEMAR KOLLE.

Witnessesx r r -BURTON THURBER, M. NEVILLE- Copies of this patent may be obtained for fivecents each, by addressing the Commissionerof latents. I

1 Washington, D. G.

75 apart to pass over the surfaces of the lens until the flanges D and D snap into the 

